<template>
  <div class="search-history">
    <van-cell title="搜索历史">
      <div v-if="isDeleteShow">
        <span @click="$emit('update-histories', [])">全部删除</span>
        &nbsp;&nbsp;
        <span @click="isDeleteShow=false">完成</span>
      </div>
      <van-icon
      v-else
      name="delete"
      @click="isDeleteShow=true" />
    </van-cell>
    <van-cell
    :title="history"
    v-for="(history, index) in searchHistories"
    :key="index"
    @click="onDelete(history, index)">

      <van-icon
      v-show="isDeleteShow"
      name="close" />
    </van-cell>

  </div>
</template>

<script>

export default {
  name: 'SearchHistory',
  props: {
    searchHistories: {
      type: Array,
      required: true
    }
  },
  data () {
    return {
      isDeleteShow: false
    }
  },
  methods: {
    onDelete (history, index) {
      // 删除
      if (this.isDeleteShow) {
        this.searchHistories.splice(index, 1)
        // 持久化
        // 1. 修改本地存储数据
        // 2. 请求接口删除线上的数据
        // setItem('search-histories', this.searchHistories)
        return
      }
      // 非删除
      this.$emit('search', history)
    }
  }
}
</script>

<style lang="less" scoped>

</style>
